A:
Positive:
1 x 6355403655 x 12710807329 x 21915185145 x 43830371319 x 4818353323 x 1912556595 x 9636716615 x 38251
Negative:
-1 x -635540365-5 x -127108073-29 x -21915185-145 x -4383037-1319 x -481835-3323 x -191255-6595 x -96367-16615 x -38251
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 635,540,365, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 635,540,365 | |
| -1 | -635,540,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 635,540,365.
Example:
1 x 635,540,365 = 635,540,365
and
-1 x -635,540,365 = 635,540,365
Notice both answers equal 635,540,365
With that explanation out of the way, let's continue. Next, we take the number 635,540,365 and divide it by 2:
635,540,365 ÷ 2 = 317,770,182.5
If the quotient is a whole number, then 2 and 317,770,182.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 635,540,365 | |
| -1 | -635,540,365 |
Now, we try dividing 635,540,365 by 3:
635,540,365 ÷ 3 = 211,846,788.3333
If the quotient is a whole number, then 3 and 211,846,788.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 635,540,365 | |
| -1 | -635,540,365 |
Let's try dividing by 4:
635,540,365 ÷ 4 = 158,885,091.25
If the quotient is a whole number, then 4 and 158,885,091.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 635,540,365 | |
| -1 | 635,540,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 1,319 | 3,323 | 6,595 | 16,615 | 38,251 | 96,367 | 191,255 | 481,835 | 4,383,037 | 21,915,185 | 127,108,073 | 635,540,365 |
| -1 | -5 | -29 | -145 | -1,319 | -3,323 | -6,595 | -16,615 | -38,251 | -96,367 | -191,255 | -481,835 | -4,383,037 | -21,915,185 | -127,108,073 | -635,540,365 |
Here are some more numbers to try:
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